82• Health Protection Agency:http://www.hpa.org.uk/Topics/Radiation/.• US Food and Drug Administration:http://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/HomeBusinessandEntertainment/CellPhones/default.htm.Specific Absorption Rate (SAR) Certification InformationYour wireless phone is a radio transmitter and receiver. It is designed andmanufactured not to exceed the exposure limits for Radio Frequency (RF) energy setby the Federal Communications Commission (FCC) of the U.S. Government.These FCC exposure limits are derived from the recommendations of two expertorganizations: the National Council on Radiation Protection and Measurement(NCRP) and the Institute of Electrical and Electronics Engineers (IEEE).In both cases, the recommendations were developed by scientific and engineeringexperts drawn from industry, government, and academia after extensive reviews ofthe scientific literature related to the biological effects of RF energy.The exposure limit set by the FCC for wireless mobile phones employs a unit ofmeasurement known as the Specific Absorption Rate (SAR). The SAR is a measureof the rate of absorption of RF energy by the human body expressed in units ofwatts per kilogram (W/kg). The FCC requires wireless phones to comply with asafety limit of 1.6 watts per kilogram (1.6 W/kg).The FCC exposure limit incorporates a substantial margin of safety to give additionalprotection to the public and to account for any variations in measurements.SAR tests are conducted using standard operating positions accepted by the FCCwith the phone transmitting at its highest certified power level in all testedfrequency bands. Although the SAR is determined at the highest certified powerlevel, the actual SAR level of the phone while operating can be well below themaximum value. This is because the phone is designed to operate at multiplepower levels so as to use only the power required to reach the network. In general,the closer you are to a wireless base station antenna, the lower the power output.